Surface and groundwater mineral discharges from the Mount Polley dam breach 2014

This statistic shows the total mineral discharges to surface and groundwater in British Columbia, Canada from the Mount Polley dam breach in 2014. In that year, the combined discharges of arsenic, cadmium, lead, nickel, selenium, antimony, chromium, cobalt, copper, manganese, mercury, thallium, vanadium, and zinc to groundwater and surface water from the Mount Polley dam breach amounted to 41,040.1 metric tons.Mount Polley mine disasterThe Mount Polley dam breach, also referred to as the Mount Polley Mine disaster, was a breach of the Mount Polley mine's copper and gold tailings storage facility/pond. It began on August 4, 2014 in the Cariboo region of British Columbia, Canada, and leaked several years' worth of mine waste into the nearby Polley Lake, before continuing on to Quesnel Lake through Hazeltine Creek. When the tailings pond was fully drained by August 8, 2014, the water levels in Polley Lake had risen by 1.5 meters, and Hazeltine Creek expanded in width from two meters to a fifty meter wide area of mud, felled trees, and other debris.Aftermath of the Mount Polley damn breach These events are considered to be one of the largest environmental disasters in recent Canadian history. Imperial Metals, the mining company that owns the Mount Polley gold and copper mine, is said to have operated the tailings pond over its capacity since 2011 or earlier. In the areas directly around and including Hazeltine Creek, Polley Lake, and Quesnel Lake there has been a "do not use" notice put on water consumption and is expected to last indefinitely; boiling the water in this area is insufficient to make it safe to drink. One of the most significant safety risks associated with the water in this area are the dangerously high levels of zinc. Mining operations at the Mount Polley Mine recommenced on August 5, 2015.

本统计数据揭示了加拿大不列颠哥伦比亚省因2014年Mount Polley水坝溃决而导致地表水和地下水中的总矿物排放情况。当年，Mount Polley水坝溃决所排放至地下水及地表水中的砷、镉、铅、镍、硒、锑、铬、钴、铜、锰、汞、铊、钒和锌等矿物质的合计排放量达到了41,040.1公吨。Mount Polley矿难Mount Polley水坝溃决，亦称为Mount Polley矿难，是指Mount Polley矿山铜金尾矿储存设施/池塘的溃决事件。该事件始于2014年8月4日，位于加拿大不列颠哥伦比亚省Cariboo地区，导致数年累积的矿山废弃物泄漏至附近的Polley湖，随后通过Hazeltine Creek继续流向Quesnel湖。至2014年8月8日尾矿池完全排空时，Polley湖的水位上升了1.5米，Hazeltine Creek的宽度从两米扩展至五十米宽的泥泞、倒树及其他杂物区域。Mount Polley水坝溃决的后果这些事件被认为是加拿大近期历史上最大的环境灾难之一。拥有Mount Polley金铜矿的矿业公司Imperial Metals，据称自2011年或更早以来便超负荷运行尾矿池。在Hazeltine Creek、Polley湖和Quesnel湖及其周边地区，已发布“禁止使用”的水消费警示，预计将无限期持续；该区域的水煮沸不足以确保其安全饮用。与该区域水质相关的最显著安全风险之一是锌含量极高。Mount Polley矿的采矿作业于2015年8月5日恢复。